Vacuum drying oven

Abstract

The utility model discloses a vacuum drying oven which comprises a vacuum box, the vacuum box is installed on external equipment, an adjusting mechanism is arranged on the vacuum box, and the adjusting mechanism comprises a bearing mechanism, a vacuum pipe, a sealing mechanism, a sliding disc, a spring, a middle pipe, a pushing disc, a tray, a thrust bearing and a sealing sleeve. Through the design of the adjusting mechanism, the vacuum drying box can adjust sealing pressure and sealing force according to needs, elastic force of a compression spring can be changed through cooperation of a rotating disc and a sealing ring, and therefore the sealing pressure between a one-way sleeve and a fixing sleeve is adjusted, and meanwhile through cooperation of a rotating rod and an inserting rod, the sealing force is adjusted. The position between the threaded sleeve and the middle pipe can be changed, then the compression amount of the spring is changed, the sealing force between the sealing sleeve and the push disc is adjusted, according to the design, an operator can flexibly adjust the sealing performance according to different vacuum drying requirements, and the adaptability and the using effect of the vacuum drying box are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum drying ovens, and more specifically, it relates to a vacuum drying oven. Background Art

[0002] In the existing technology, a vacuum drying oven is a commonly used experimental device for drying, dehydrating or degassing samples under low pressure or vacuum conditions. However, there are some problems in the use of the existing vacuum drying oven, especially that the air suction interface cannot effectively seal and maintain pressure, thus affecting its use effect.

[0003] First of all, insufficient sealing performance at the air suction interface of the vacuum drying oven will lead to a decrease in vacuum degree, affecting the drying effect. During the vacuum drying process, it is necessary to maintain a low air pressure or vacuum state inside the oven to promote the evaporation of moisture or other solvents in the sample. If there is a leak at the air suction interface, external air will enter the oven, resulting in a decrease in vacuum degree, thereby reducing the drying speed and drying effect. In this case, it takes a longer time to reach the required drying degree, affecting the efficiency and accuracy of the experiment.

[0004] Secondly, insufficient sealing performance at the air suction interface may also cause sample contamination. During the vacuum drying process, the sample is usually isolated from the external environment to prevent the entry of pollutants. However, if there is a leak at the air suction interface, external dust, bacteria or other pollutants may enter the oven and contaminate the sample. This will have a negative impact on the experimental results, especially in experiments with high requirements for sample purity. Content of the Utility Model

[0005] Aiming at the problems existing in the prior art, the utility model provides a vacuum drying oven to solve the technical problems mentioned in the background art.

[0006] To achieve the above object, the utility model provides the following technical solution: a vacuum drying oven, including a vacuum chamber, the vacuum chamber is installed on an external device, an adjusting mechanism is arranged on the vacuum chamber, the adjusting mechanism includes a receiving mechanism, a vacuum tube, a sealing mechanism, a sliding disk, a spring, an intermediate tube, a push disk, a tray, a thrust bearing and a sealing sleeve, the receiving mechanism is installed on the vacuum chamber, the vacuum tube is communicated with the vacuum chamber, the sliding disk is slidably connected inside the vacuum tube, the sealing mechanism is cooperatively connected to the vacuum tube and the intermediate tube, the push disk is installed on the sliding disk, the spring is installed on the push disk, the sealing sleeve is attached to the push disk, both ends of the thrust bearing are respectively attached to the sealing sleeve and the tray, and the tray and the sliding disk are coaxially arranged.

[0007] The utility model is further arranged such that a threaded sleeve is provided on the intermediate tube in a threaded manner, the threaded sleeve is installed on the tray, and the design of the threaded sleeve ensures the continuity of adjustment.

[0008] The utility model is further configured that a rotating rod is rotatably provided in the middle tube, a follower sleeve is coaxially provided on the rotating rod, a plurality of insertion rods are provided on the follower sleeve, and the plurality of insertion rods are respectively slidably connected to the push plate, and the configuration of the rotating rod ensures the continuity of rotation.

[0009] The utility model is further configured that a plurality of guide strips are equidistantly arranged on the inner wall of the vacuum tube, and the sliding plates are respectively slidably connected to the guide strips, and the design of the guide strips ensures the limiting position of the sliding plates.

[0010] The utility model is further configured that the sealing mechanism includes a fixed sleeve and a one-way sleeve, the fixed sleeve is installed on the vacuum tube, the one-way sleeve is installed on the vacuum tube, the one-way sleeve is pressed on the fixed sleeve, and the spring is in contact with the fixed sleeve. The design of the sealing mechanism ensures the sealing effect.

[0011] The utility model is further configured that a sealing ring is threadedly provided on the vacuum tube, a rotating disk is provided on the sealing ring, and the intermediate tube is rotatably connected in the sealing ring. The design of the sealing ring ensures the sealing effect.

[0012] The utility model is further configured as follows: a compression spring is provided on the sealing ring, the compression spring abuts against the one-way sleeve, an air suction pipe is provided on the vacuum tube, the air suction pipe is connected to an external air suction device, and the design of the compression spring ensures the continuity of the seal.

[0013] The utility model is further configured that the receiving mechanism comprises a partition plate and a cover plate, the partition plate is installed in the vacuum box, and the cover plate is rotatably connected to the vacuum box. The design of the receiving mechanism ensures the continuity of drying.

[0014] Beneficial effects:

[0015] Compared with the prior art, the utility model provides a vacuum drying oven, which has the following beneficial effects:

[0016] 1. The design of the adjustment mechanism enables the vacuum drying oven to adjust the sealing pressure and sealing force as needed. Through the cooperation of the rotating disk and the sealing ring, the elastic force of the compression spring can be changed, thereby adjusting the sealing pressure between the one-way sleeve and the fixed sleeve. At the same time, through the cooperation of the rotating rod and the insertion rod, the position between the threaded sleeve and the intermediate tube can be changed, thereby changing the compression amount of the spring and adjusting the sealing force between the sealing sleeve and the push plate. This design enables the operator to flexibly adjust the sealing performance according to different vacuum drying requirements, thereby improving the adaptability and use effect of the vacuum drying oven.

[0017] 2. The sealing mechanism provides a double sealing function to ensure the sealing performance of the vacuum drying box during the suction process. The cooperation of the one-way sleeve and the fixed sleeve forms the first seal to prevent external air from entering the vacuum box. At the same time, the cooperation of the sealing sleeve and the push plate forms the second seal, which further enhances the sealing effect. This double sealing design effectively improves the vacuum degree of the vacuum drying box and ensures the smooth progress of the drying process.

[0018] 3. The design of the receiving mechanism enables the vacuum drying box to effectively seal and maintain a vacuum state. Through the cooperation of the partition and the cover, the sealing of the vacuum box can be ensured after the vacuum process is completed. The rotating connection of the cover allows the operator to easily open and close the vacuum box and place and remove samples. This design not only improves the sealing performance of the vacuum drying box, but also facilitates the use of operators and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the vacuum drying oven in the utility model;

[0020] Figure 2 It is a structural schematic diagram of the adjustment mechanism in the utility model;

[0021] Figure 3 For the utility model Figure 2 A schematic cross-sectional structure diagram of;

[0022] Figure 4 For the utility model Figure 3 A schematic cross-sectional structure diagram of;

[0023] Figure 5 It is a structural schematic diagram of the rotating rod in the utility model.

[0024] In the figure: 1. vacuum box; 2. vacuum tube; 3. sliding plate; 4. spring; 5. intermediate tube; 6. push plate; 7. tray; 8. thrust bearing; 9. sealing sleeve; 10. threaded sleeve; 11. rotating rod; 12. follower sleeve; 13. insertion rod; 14. guide strip; 15. fixed sleeve; 16. one-way sleeve; 17. sealing ring; 18. rotating plate; 19. compression spring; 20. suction pipe; 21. partition; 22. cover plate. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present utility model, unless otherwise specified, the orientations such as "upper" and "lower" generally refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left" and "right" generally refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the contours of the respective components. However, the above orientation terms are not used to limit the present utility model.

[0028] Please refer to Figures 1-5 , a vacuum drying oven, comprising a vacuum chamber 1, the vacuum chamber 1 is installed on an external device, an adjusting mechanism is provided on the vacuum chamber 1, the adjusting mechanism includes a receiving mechanism, a vacuum tube 2, a sealing mechanism, a sliding disk 3, a spring 4, an intermediate tube 5, a pushing disk 6, a tray 7, a thrust bearing 8 and a sealing sleeve 9. The receiving mechanism is installed on the vacuum chamber 1, the vacuum tube 2 is communicated with the vacuum chamber 1, the sliding disk 3 is slidably connected inside the vacuum tube 2, the sealing mechanism is cooperatively connected to the vacuum tube 2 and the intermediate tube 5, the pushing disk 6 is installed on the sliding disk 3, the spring 4 is installed on the pushing disk 6, the sealing sleeve 9 is attached to the pushing disk 6, both ends of the thrust bearing 8 are respectively attached to the sealing sleeve 9 and the tray 7, the tray 7 and the sliding disk 3 are coaxially arranged, a threaded sleeve 10 is provided on the intermediate tube 5 in a threaded manner, the threaded sleeve 10 is installed on the tray 7, a rotating rod 11 is rotatably provided inside the intermediate tube 5, a follower sleeve 12 is coaxially provided on the rotating rod 11, a plurality of insertion rods 13 are provided on the follower sleeve 12, and the plurality of insertion rods 13 are respectively slidably connected to the pushing disk 6. A plurality of guiding strips 14 are equidistantly provided on the inner wall of the vacuum tube 2, and the sliding disk 3 is respectively slidably connected to the guiding strips 14. The sealing mechanism includes a fixed sleeve 15 and a one-way sleeve 16. The fixed sleeve 15 is installed on the vacuum tube 2, the one-way sleeve 16 is installed on the vacuum tube 2, the one-way sleeve 16 is pressed on the fixed sleeve 15, the spring 4 abuts against the fixed sleeve 15, a sealing ring 17 is provided on the vacuum tube 2 in a threaded manner, a rotating disk 18 is provided on the sealing ring 17, the intermediate tube 5 is rotatably connected inside the sealing ring 17, a compression spring 19 is provided on the sealing ring 17, the compression spring 19 abuts against the one-way sleeve 16, an air suction pipe 20 is provided on the vacuum tube 2, and the air suction pipe 20 is communicated with an external air suction device. The receiving mechanism includes a partition plate 21 and a cover plate 22. The partition plate 21 is installed inside the vacuum chamber 1, and the cover plate 22 is rotatably connected to the vacuum chamber 1.

[0029] In this embodiment, during the inhalation process, first, an external inhalation device is used for inhalation. When the pressure exceeds the elastic force of the compression spring 19, the seal between the one-way sleeve 16 and the fixed sleeve 15 will be released. Then, the sliding disk 3 will slide upward along the vacuum tube 2, and the guiding strip 14 ensures the positioning of the sliding disk 3. Then, the seal between the sealing sleeve 9 and the push disk 6 is released, thus releasing the double seal. Then, the vacuum process is carried out. When the sealing pressure needs to be adjusted, first, the rotating disk 18 is rotated. Since the sealing ring 17 is threadedly connected to the vacuum tube 2, the elastic force of the compression spring 19 can be changed, thereby changing the seal between the one-way sleeve 16 and the fixed sleeve 15. When the sealing force between the sealing sleeve 9 and the push disk 6 is required, first, the rotating rod 11 is rotated. Then, the threaded sleeve 10 can be driven to rotate by the insertion rod 13. Therefore, the position between the threaded sleeve 10 and the intermediate tube 5 can be changed. Thus, the compression amount of the spring 4 can be changed, thereby changing the seal between the sealing sleeve 9 and the push disk 6. Then, the adjustment process is completed.

[0030] More specifically, when the vacuum is completed, the cover plate 22 ensures the sealing of the vacuum chamber 1, thereby completing the vacuum drying process.

[0031] In summary, when the overall device is in use or operation: during the inhalation process, first, an external inhalation device is used for inhalation. When the pressure exceeds the elastic force of the compression spring 19, the seal between the one-way sleeve 16 and the fixed sleeve 15 will be released. Then, the sliding disk 3 will slide upward along the vacuum tube 2, and the guiding strip 14 ensures the positioning of the sliding disk 3. Then, the seal between the sealing sleeve 9 and the push disk 6 is released, thus releasing the double seal. Then, the vacuum process is carried out. When the sealing pressure needs to be adjusted, first, the rotating disk 18 is rotated. Since the sealing ring 17 is threadedly connected to the vacuum tube 2, the elastic force of the compression spring 19 can be changed, thereby changing the seal between the one-way sleeve 16 and the fixed sleeve 15. When the sealing force between the sealing sleeve 9 and the push disk 6 is required, first, the rotating rod 11 is rotated. Then, the threaded sleeve 10 can be driven to rotate by the insertion rod 13. Therefore, the position between the threaded sleeve 10 and the intermediate tube 5 can be changed. Thus, the compression amount of the spring 4 can be changed, thereby changing the seal between the sealing sleeve 9 and the push disk 6. Then, the adjustment process is completed.

[0032] When the vacuum is completed, the cover plate 22 ensures the sealing of the vacuum chamber 1, thereby completing the vacuum drying process.

[0033] Among all the solutions mentioned above, for those involving the connection between two components, welding, the connection with bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those involving fixed connection mentioned above, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum drying oven, comprising a vacuum oven (1), characterized in that: The vacuum box (1) is installed on an external device. The vacuum box (1) is provided with an adjustment mechanism, which comprises a receiving mechanism, a vacuum tube (2), a sealing mechanism, a sliding disk (3), a spring (4), an intermediate tube (5), a push disk (6), a tray (7), a thrust bearing (8) and a sealing sleeve (9). The receiving mechanism is installed on the vacuum box (1), the vacuum tube (2) is connected to the vacuum box (1), the sliding disk (3) is slidably connected to the vacuum tube (2), the sealing mechanism is cooperatively connected to the vacuum tube (2) and the intermediate tube (5), the push disk (6) is installed on the sliding disk (3), the spring (4) is installed on the push disk (6), the sealing sleeve (9) is attached to the push disk (6), the two ends of the thrust bearing (8) are attached to the sealing sleeve (9) and the tray (7) respectively, and the tray (7) and the sliding disk (3) are coaxially arranged.

2. The vacuum drying oven according to claim 1, characterized in that: The intermediate tube (5) is threadedly provided with a threaded sleeve (10), and the threaded sleeve (10) is installed on the tray (7).

3. The vacuum drying oven according to claim 2, characterized in that: A rotating rod (11) is rotatably arranged in the middle tube (5), a follower sleeve (12) is coaxially arranged on the rotating rod (11), a plurality of insertion rods (13) are arranged on the follower sleeve (12), and the plurality of insertion rods (13) are respectively slidably connected to the push plate (6).

4. The vacuum drying oven according to claim 3, characterized in that: A plurality of guide strips (14) are equidistantly arranged on the inner wall of the vacuum tube (2), and the sliding plates (3) are respectively slidably connected to the guide strips (14).

5. The vacuum drying oven according to claim 4, characterized in that: The sealing mechanism comprises a fixed sleeve (15) and a one-way sleeve (16); the fixed sleeve (15) is mounted on the vacuum tube (2); the one-way sleeve (16) is mounted on the vacuum tube (2); the one-way sleeve (16) is pressed on the fixed sleeve (15); and the spring (4) abuts against the fixed sleeve (15).

6. The vacuum drying oven according to claim 5, characterized in that: The vacuum tube (2) is threadedly provided with a sealing ring (17), the sealing ring (17) is provided with a rotating disk (18), and the intermediate tube (5) is rotatably connected in the sealing ring (17).

7. The vacuum drying oven according to claim 6, characterized in that: The sealing ring (17) is provided with a compression spring (19), which contacts the one-way sleeve (16). The vacuum tube (2) is provided with an air suction pipe (20), which is connected to an external air suction device.

8. The vacuum drying oven according to claim 1, characterized in that: The receiving mechanism comprises a partition plate (21) and a cover plate (22); the partition plate (21) is installed in the vacuum box (1); and the cover plate (22) is rotatably connected to the vacuum box (1).

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